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Thread: Auto Downshifting Points

  1. 05-11-2007 #1
    03Quadrado
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    Auto Downshifting Points

    Ive had hptuners now for a few years but cant figure out how to get my 4l80e to downshift at higher vehicle speeds, (ie plus 12mph). Ive got the upshifts perfectly dialed in. Now i want to get my truck to downshift automatically. I would like 4th gear to stay engaged no lower than say 33mph. In other words if i lift my foot i want it to go into 3rd gear below 33mph, always. I want to work this with all the gears. I cant seem to make it work. Maybe im doing it wrong. Any help you guys can give me would be great. Anybody???
    Last edited by 03Quadrado; 05-14-2007 at 11:16 PM.
    2003 HD Silverado 6.0 4x4 w/Quadrasteer 36" Michelin ZXL (255/100R16) (9.00R16)
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  2. 05-30-2007 #2
    wide open
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    I am a novice at best but can't you change the downshift speeds via the Shift Speed vs TPS vs Shift - Normal table 4-> 3 Shift table by setting the downshift speed to the desired mph?
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  3. 05-31-2007 #3
    03Quadrado
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    Ive done that. check out this graph. Let me know what you think. Lo.
    2003 HD Silverado 6.0 4x4 w/Quadrasteer 36" Michelin ZXL (255/100R16) (9.00R16)
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